Another dvd player issue - error 70017

I accidentally posted this in the pre-2009 forum - so I am posting here to correct -sorry for the duplicate post.

Mac Mini early 2009 - 2.0ghz, 3gb ram, 10.6.2.

I am having a regular problem with the dvd player; I usually get the message "There was an initialization error. A valid video device could not be found for playback. Error 70017" when I start the program.

The DVD drive works wonderfully for reading, burning, etc. If I restart the computer the dvd player usually works for watching movies...if I use Toast, disk utility, or any other dvd related program, the player will now work again. I have tried the pacifist method to reinstall and have deleted every dvd player file I can find.... The same happens when I reset pram. Repairing the drive/repairing permissions is not effective either - sometimes it works for a little while, but the issue always returns.

Any advice? Doesn't seem to be hardware because it works for other programs, but I'd be glad to test that as well.

What's going on here? This is frustrating...I can use any number of other programs to watch movies, but it sure is nice to be able to use dvd player to see which title is playing, etc...plus I just want it to work - after all, isn't that the hook?

Thanks - tried that last night. Didn't fix it, but after a repair permission following the reset, it now seems to work on and off more rapidly...haven't used it enough to be sure. Using Toast or disk utility seems to impact it as well....

Forgot to say that my Macmini has no hardware video screen connected. I get the video screen on my Macbook Pro by sharing it via wi-fi.Just thinking that the Dvd Player sfw is not running because the Macmini does not have any hardware screen attached. Possible?

I'm only guessing here, but I suspect that you are the victim of DRM. Part of the DVI standard is something (which will be corrected if I'm wrong) called HDCP, which looks for a display that has no capacity for recording.

No display, no DVD playback.

Try hooking up a DVI monitor to the Mini and see if you get the same error.

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